程控交换机
program-controlled switchboard
program controlled switchboard
program controled exchange
program control switching
Program controlled exchange
program control exchanger
program controlled switch
program control switch
programmable exchange
program-controlled switch
program-controlled exchange
digital program controlled exchange
stored program controlled exchange
SPC exchanges
SPC exchange
exchanger
programme controlled exchange
Exchange
SPC digital exchange
digital exchanger
private branch exchange
numerical control switcher
program-controlled converter
private automatic branch exchange
time-sharing control
SPC
PBX
digital exechange
PCS
PABX
程控交换机电路
Programmable switchboard circuit
程控交换机房
stored-program control SPC exchange center
大唐程控交换机
Datang program-controlled switch
数字程控交换机
digital program-controlled exchanger
digital program control exchange
digital programmer switcher
digital SPC exchange
Digital SPC Switch
digital telephone switching
集中用户交换机功能
centralized exchange functions
程控交换
program control exchange
program-controlled exchange
program controlled switch
switching of program control
program control exchanges
Program controlled exchange
programmed switch
program control switching
programmed control switching
program-controlled switching
stored program control exchange
stored program control switching
programmed automatic exchange
SPC switching
SPC exchange
Stored program switching
stored progrom control exchange
程控交换台
program-controlled telephone switchboard
电话程控交换
Telecommunication switching
公路工程交换程序
highway engineering exchang program
heep